On-line Survey of Prevailing Wages

WATER WELL DRILLER or WELL DRILLER HELPLER
WATER WELL DRILLER
Summary of Duties:
Locates and drills deep water wells for use in supplying spring water to rural households and communities.
Work Performed:
1. Determines location of subterranean springs for well drillings by studying physical features or terrain and making test borings.
2. Estimates water-well needs of specific localities to determine number, sizes and depths of drillings, considering factors, such as population load, area size and methods and equipment used in distributing water, and employing their knowledge of water-supply problems.
3. Drills the wells and supervises labor crews in installing subterranean pipes and screening equipment to be used in filtering water at the well openings.
Sets up and operates well-drilling machines:
(1) Hoists tubular casing in position over well hole.
(2) Lowers drill stem into casing, bolting necessary connections.
(3) Manipulates levers to control drill and drive casing.
(4) Threads additional casings and drives them into well as hole is deepened.
(5) Removes samples of subterrain as wanted.
WELL DRILLER HELPER
Summary of Duties:
Assists well driller in setting up and operating drilling machine.
Work Performed:
1. Placing and blocking machine in position.
2. Digging small hole with pick and shovel to start well.
3. Setting steel casing in hole.
4. Lowering drill stem in casing.
5. Bolting drive clamp around drill stem.
6. Helps thread additional casings and drive them into well as hole is deepened.
7. Helps install subterranean pipes and screening equipment to be used in filtering water at the well openings.